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Re: Series 40 Detroit

Reply #1 –
Yahoo Message Number: 68631
John,

Why do you feel you need for more HP? Are you sure it is running as it should? I had lots of problems with my 40 series, once corrected, it is a great runner with lots of power.

Leonard

97 Magna 5418

Re: Series 40 Detroit

Reply #2 –
Yahoo Message Number: 68634
Leonard, I have had the coach for a year so I just don't know if it is running right. It has 330 HP, 70,000 miles. My last rig was a non turbo 210 HP Cat and not a whole lot of difference in the two. It's a very poor climber. I'm not overweight. I tow a Toyota Pickup. Can you elaborate on the whole lot of problems you had? John

Re: Series 40 Detroit

Reply #3 –
Yahoo Message Number: 68637
O.K. It is not running right for sure. Suspect you have lot of smoke. It runs good on the flat but as soon as you get in a pull it falls flat.

First thing to check is the 90 degree rubber boot between the turbo pipe and the valve cover on top of the engine. They break on the bottom and lets all the tubo boost out. Take the boot off and turn over and really look close, flex it hard. Mine was really hard to find. Close to $100 at International dealer.

Can give you several other things to check or we can take them one at a time. Your call. But this is the first and most important. The engine is a great when things are right.

Leonard

97' Magna 5418

Re: Series 40 Detroit

Reply #4 –
Yahoo Message Number: 68692
Thanks Leonard, I'll let you know what I find. You can give me the other things to check while I'm in the engine compartment. John --- On Sun, 2/20/11, Leonard Kerns wrote: From: Leonard Kerns Subject: Re: [Country-Coach-Owners] Series 40 DetroitTo: Country-Coach-Owners@yahoogroups.comDate: Sunday, February 20, 2011, 7:41 PM
O.K. It is not running right for sure. Suspect you have lot of smoke. It runs good on the flat but as soon as you get in a pull it falls flat.
First thing to check is the 90 degree rubber boot between the turbo pipe and the valve cover on top of the engine. They break on the bottom and lets all the tubo boost out. Take the boot off and turn over and really look close, flex it hard. Mine was really hard to find. Close to $100 at International dealer.
Can give you several other things to check or we can take them one at a time. Your call. But this is the first and most important. The engine is a great when things are right.
Leonard

97' Magna 5418

Re: Series 40 Detroit

Reply #5 –
Yahoo Message Number: 68697
John,I started with the basics and found the boot problem last, but the basics need to be checked to be sure of what you have. The timing was off on mine, someone had adjusted it wrong. Made a big difference in performance. Not knowing your mechanical experience, most of what I list, probably will need to be done by experienced mechanic unless you have diesel engine repair experience. The timing and valve lash information is on the large tag on the valve cover. Check timing. You have enough miles the valves needs adjusting. Check turbo. You can do this by looking at the exhaust side very close. Will have to crawl under and use a light to look at the bottom of the exhaust side. Look for cracks or off color. Top side easy to see. Fuel pressure needs checked. There is a check valve on the injector pump that needs checked. Mine had a broken spring. The job of the valve is to keep a head pressure in the injector plungers. It is a simple check to remove, after a compete cleaning of the area, and shake. It it rattles, the spring is broken and the whole valve needs replaced. You will spot it by looking on the engine side of the pump at the front end of the motor, rear of coach. The exhaust fuel line comes off the check valve back to the tank. So what you need is, correct fuel pressure. Correct timing and valve lash. Correct turbo boost. Since the engines are pre-computer and no gauges, makes it hard for the operator to know what is going on. I added boost, fuel pressure and exhaust temp. gauges to mine. Finding all ready installed and usable wire from the front to back was the biggest problem. The wires were there, just hard to find and not where one would suspect. Our unit had 30,000 miles on it, yet the turbo was bad. Cracked exhaust side housing, from hard running and not allowing time to cool down before shut down. Another reason I added the exhaust temp gauge. Now I know when it is cooled off and o.k. to shut down. Once all this is checked and repaired as needed, you will find you have a beast on your hands. Great running, hard pulling engine. Also, you should be running some kind of fuel additive that adds lubrication to the fuel. Our pumps are not designed for the ultra low sulfur diesel we are burning. A replacement pump is close to the $2000 range. That buys lots of additive. If parts are needed, go to an International dealer. Got the check valve from the local fuel injection rebuild company. Also found the fuel lift pump was bad. It is located on the off-engine side of the injection pump. Easy to see and not bad to get to. Two nuts hold it on. Found high volume on the net' lots cheaper then local. There is a big confusion on what engine that is even with International as far as some part numbers. Local International dealer got me the correct turbo. If you need help with part numbers, get a hold of me and I can point you in the correct direction.I went from hating the engine to loving it, once everything was fixed. Add to the list, a clean air cleaner element. Cheap on-line. Also check the turbo to after cooler tubes. One of mine was rubbing the exhaust pipe. Required replacement of missing factory clamps to correct. Think that is it. Required lots of time and energy to figure all this out. It was worth it for the finished product is great. Feel free to contact me if needed. Leonard Kerns97' Magna 5418

Re: Series 40 Detroit

Reply #6 –
Yahoo Message Number: 68857
Leonard, Good call on the boot, mine had at least a 3" crack in the bottom. Off to town tomorrow to locate one. Any other ideas I'm all ears. John --- On Sun, 2/20/11, Leonard Kerns wrote: From: Leonard Kerns Subject: Re: [Country-Coach-Owners] Series 40 DetroitTo: Country-Coach-Owners@yahoogroups.comDate: Sunday, February 20, 2011, 7:41 PM
O.K. It is not running right for sure. Suspect you have lot of smoke. It runs good on the flat but as soon as you get in a pull it falls flat.
First thing to check is the 90 degree rubber boot between the turbo pipe and the valve cover on top of the engine. They break on the bottom and lets all the tubo boost out. Take the boot off and turn over and really look close, flex it hard. Mine was really hard to find. Close to $100 at International dealer.
Can give you several other things to check or we can take them one at a time. Your call. But this is the first and most important. The engine is a great when things are right.
Leonard

97' Magna 5418
 

Re: Series 40 Detroit

Reply #7 –
Yahoo Message Number: 68860
Yep. Will be easy fix, IF everything else is correct. Did you get the note will lots of things you could check? You will think you have a new engine now. Leonard97' Magan 5418